A 200 kW PV rooftop installation of Stucchi using the EGA support system, On the right Grondal boss Guiseppe Engheben.
For example Stucchi, the European leader at the valve and vacuum pump production, established in Pagazzano near Bergamo relies on the EGA system. On the trapezoidal metal roof of a new building, a 200 kW PV system is attached in this way. The reason for the installation of the PV roof system is a statutory "solar obligation", which applies throughout Italy. New industrial and commercial buildings have to cover 40 to 80 % of their electricity or heat requirements via photovoltaics or solar thermal, private buildings by 50% and even more stringent requirements apply to public buildings. The regulation also applies to basic building requalification.
AMORTIZATION WITHIN FIVE TO SIX YEARS
At Stucchi, the solar power is used to cool the building down to a temperature of about 21 degrees Celsius. Without cooling, the temperature in the warehouses and production halls could climb up to 40 degrees on some hot days. "So far we are very satisfied. We expect amortization within five to six years, "says Stucci’s spokeswoman. Based on the good experience, the company plans to equip neighboring halls on the factory site with photovoltaics.